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841 results for “vibrations”
A tentative role of vibration-based communication in locust collective behavior
Locusts are renowned for their coordinated locomotion, or collective marching, in which juveniles swarm and walk in a synchronized fashion. While it is generally accepted that vision is the main form of communication enabling this behavior, it is suggested here that mechanical vibrations may also contribute to communication within the group. Using a laser Doppler vibrometer and accelerometer, the substrate vibration signals generated by locust walking, jumping, and coordinated marching were quantified in terms of frequency and amplitude. These mechanical signals were then artificially produced by a vibration generator and directly applied to the mechanical sensory receptors of experimental tethered locusts. A sensory threshold curve of the mechanical response of the locusts was established, in order to quantify and compare their ability to sense specific forms of locomotion, namely: individual walking, jumping, and coordinated group marching. While the vibrations generated by individuals walking in an unsynchronized fashion were below the sensory threshold of the locust, our findings indicate that locusts are capable of sensing the vibration signals generated by locust hopping or by the collective marching of conspecifics. It is suggested that locusts in a swarm may use substrate-borne mechanical vibrations for communication within the group, and that vibration-based communication may have a role in locust collective behavior and coordinated marching.
Dataset for "Strong ortho/para effects in the vibrational spectrum of Cl-(H2)"
<p>Dataset for "Strong ortho/para effects in the vibrational spectrum of Cl-(H2)"</p>
Supplementary dataset for 'Super-resolution vibrational imaging based on photoswitchable Raman probe'
<p>Here's a dataset for 'Super-resolution vibrational imaging based on photoswitchable Raman probe.' </p>
FIGURE 1 in What do molecular data and vibrational communication tell us about the taxonomy of the genus Tyrrhenoleuctra Consiglio, 1957 (Plecoptera: Leuctridae) in Spain?
FIGURE 1. Map of Spain (Canary Islands not included) showing the locations (S1-S6) of the studied populations. See material and methods section for the complete information on localities.
FIGURE 2 in What do molecular data and vibrational communication tell us about the taxonomy of the genus Tyrrhenoleuctra Consiglio, 1957 (Plecoptera: Leuctridae) in Spain?
FIGURE 2. COI maximum likelihood (ML) tree representing five clades of Tyrrhenoleuctra species and one outgroup species Leuctra fusca. Sequences in bold indicate sequences generated in the present study, while the other sequences were downloaded from Genbank. Number at nodes represent support values (bootstrap= 1000).
FIGURE 5 in What do molecular data and vibrational communication tell us about the taxonomy of the genus Tyrrhenoleuctra Consiglio, 1957 (Plecoptera: Leuctridae) in Spain?
FIGURE 5. Tyrrhenoleuctra hynesi sp. n. Tip of the holotype male abdomen in lateral view (A), dorsal view (B) and ventral view (C); tip of a paratype female abdomen in ventral view (D).
Fig. 5 in A robust method for simultaneous quantification of eugenol, eugenyl acetate, and β-caryophyllene in clove essential oil by vibrational spectroscopy
Fig. 5. The score plots of the wavenumbers obtained from the best PLS models. a) Total eugenol, b) Eugenyl acetate, c) β-caryophyllene. PLS: Partial least square.
Fig. 4 in A robust method for simultaneous quantification of eugenol, eugenyl acetate, and β-caryophyllene in clove essential oil by vibrational spectroscopy
Fig. 4. The plots of the regression coefficients and the predicted versus reference values of the major compounds obtained from the best PLS models. a) Total eugenol, b) Eugenyl acetate, c) β-caryophyllene. PLS: Partial least square.
Fig. 3 in A robust method for simultaneous quantification of eugenol, eugenyl acetate, and β-caryophyllene in clove essential oil by vibrational spectroscopy
Fig. 3. ATR-FTIR spectra of the calibration sets. a) Total eugenol, b) Eugenyl acetate, c) β-caryophyllene. ATR-FTIR: Attenuated total reflectance- Fourier transform infrared.
Fig. 2 in A robust method for simultaneous quantification of eugenol, eugenyl acetate, and β-caryophyllene in clove essential oil by vibrational spectroscopy
Fig. 2. GC-MS chromatogram obtained with the analysis of CO13 sample. GC-MS: Gas chromatography-mass spectrometry; CO: Clove oil.
Fig. 1 in A robust method for simultaneous quantification of eugenol, eugenyl acetate, and β-caryophyllene in clove essential oil by vibrational spectroscopy
Fig. 1. The molecular structures of the major components of clove essential oil. a) Eugenol, b) Eugenyl acetate, c) β-caryophyllene.
Multi-modal Dataset of Human Activities of Daily Living with Ambient Audio, Vibration and Environmental Data
<pre>This dataset provides over 43000 samples of 25 different human activities (e.g. walking, opening/closing a door, sitting down, vacuum cleaning). Each sample is recorded by 5 sensor devices with multiple types of sensors. The main part is audio and vibration. Further metrics were recorded at a low frequency, and are: infrared array, light color, temperature, relative humidity, atmospheric pressure, air quality measure, volatile organic compounds and CO2 equivalent. The data was recorded in supervised sessions to label each sample. The recording environment consisted of a kitchen and dining room. Flawed samples were removed and the different metrics were synchronized, but no further processing or filtering of the data was performed. </pre>
Whole-body Vibration and Manual Ability
ClinicalTrials.gov study NCT03289689. IPD Sharing: UNDECIDED. Countries: 1. Publications: 1.
Vibration for Pain Reduction During Trigger Point Injection
ClinicalTrials.gov study NCT03365674. IPD Sharing: NO. Countries: 1. Publications: 4.
The Effects of Different Vibration Exercises on COPD Patients
ClinicalTrials.gov study NCT06413524. IPD Sharing: NO. Countries: 1. Publications: 5.
Buerger Exercises With Whole Body Vibration in Diabetic Peripheral Neuropathy
ClinicalTrials.gov study NCT06737861. IPD Sharing: NO. Countries: 1. Publications: 6.
Effects of Vibration Frequencies in Rotator Cuff Syndrome
ClinicalTrials.gov study NCT06899945. IPD Sharing: NO. Countries: 1. Publications: 0.
Whole Body Vibration for Dystonia Cerebral Palsy
ClinicalTrials.gov study NCT03779308. IPD Sharing: NO. Countries: 1. Publications: 18.
The Effect of Topical Vibration on Injection Pain in Scalp Block
ClinicalTrials.gov study NCT06038825. IPD Sharing: NO. Countries: 1. Publications: 2.
Exploratory Study of the Diagnostic Potential of an Innovative Thoracic Vibration Analysis Technique
ClinicalTrials.gov study NCT06661200. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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